SMPM Connectors
Micro‑miniature blind‑mate RF connectors for ultra‑high frequency board‑to‑board and cable applications
Overview
Amphenol RF’s SMPM connectors are purpose-built for space‑constrained, high‑frequency environments. With a compact yet robust design supporting DC–65 GHz performance, these connectors fit seamlessly into miniaturized modules, test setups and blind‑mate scenarios like board‑to‑board and cable‑to‑board systems.
Available in both push‑on smooth‑bore and snap‑on full‑detent styles, SMPM connectors ensure reliable mating, even under slight misalignment. Choose from straight or right‑angle cable plugs and a range of PCB receptacles—surface‑mount, through‑hole, or edge‑launch—for versatile system integration.
Features and Benefits
- Ultra-high frequency range: Supports DC–65 GHz for cutting-edge RF and microwave systems
- Compact micro‑miniature footprint: Ideal for tight enclosure and high‑density board layouts
- Blind‑mate capability: Optional bullet adapters enable tolerance for axial/radial misalignment
- Two mating styles: Smooth‑bore (quick push-on) and full‑detent (secure engagement)
- Versatile terminations: Cable‑to‑board, board‑to‑board and cable assemblies with semi‑rigid or flexible coax
Key Technical Details
- Impedance: 50 Ω
- Frequency range: DC to 65 GHz (connector & cable/PCB trace dependent)
- Dielectric withstanding voltage: ≥ 325 Vrms
- PCB spacing: down to ~8.65 mm (with bullet adapter)
- Misalignment compensation: ~0.51 mm radial, ~0.25 mm axial float
Applications
- High-density board-to-board RF interconnects
- Microwave test instrumentation
- Antenna front-end modules
- Handheld radios, UAVs and portable systems
- Quantum computing and medical diagnostics equipment
Explore our range of SMPM standard connectors for high-performance, space-efficient RF solutions. If your design requires custom spacing, orientation or mating force, our engineering team is ready to help craft a tailored SMPM interconnect solution.
Specifications
SMPM Connectors
Electrical
| Impedance | 50 Ohm |
| Frequency Range | DC - 26.5 GHz (DC - 65 GHz on Extended Range Designs) |
| Dielectric Withstanding Voltage | 325 VRMS Min |
| VSWR (Return Loss) |
|
|
DC - 10 GHz
|
1.15 (-23 dB) Max |
|
10 - 26.5 GHz
|
1.25 (-19 dB) Max |
|
26.5 - 50 GHz
|
1.35 (-16 dB) Max |
| Insulation Resistance | 5000 MΩ Min |
| Center Contact Resistance | 6 mΩ Max |
| Outer Contact Resistance | 2 mΩ Max |
| RF Leakage | -85 dB Max (DC - 4 GHz) |
| Insertion Loss | .1 √(f(GHz)) dB Max |
| Power Handling | 16 W @ 1 GHz @ 25ºC |
Environmental
| Temperature Range | −65°C to +165°C |
| Thermal Shock | MIL-STD-202, Method 107, Condition B |
| Corrosion | MIL-STD-202 Method 101 (Test Condition B) - 5% Salt Solution |
| Vibration | MIL-STD-202, Method 204, Condition B |
| Mechanical Shock | MIL-STD-202, Method 213, Condition A |
| Moisture Resistance | MIL-STD-202, Method 106 |
Mechanical
| Mating Cycles | 100 Min (Full Detent), 500 Min (Smooth Bore) |
| Coupling Mechanism | Push-On |
| Interface Specification | MIL-STD-348 |
| Engagement Force | ≤ 15N |
| Disengagement Force | ≤ 2N |
| Mechanical Misalignment |
|
|
Axial
|
0.25 mm |
|
Radial
|
3° |
|
Min Board to Board Distance
|
6.6 mm |
Note: These characteristics are typical and may not apply to all connectors.
Connector configurations may affect performance.
Interface Dimensions
Plug (Bullet)
Jack (Smooth Bore)
Jack (Full Detent)
Related Resources
Achieve reliable high-density connections in tight spaces with the new SMP to SMPM adapter
Amphenol RF is pleased to announce the expansion of our coaxial adapter portfolio with a new SMP straight plug to SMPM straight plug adapter offering high-frequency performance in a low-profile package.
Precisely space PCBs with new SMPM bullet adapter for blindmate applications
Amphenol RF is pleased to announce the expansion of its high-performance SMPM portfolio with an additional bullet adapter length for increased PCB spacing options. This microminiature product series provides a versatile connectivity solution for board-to-board and cable-to-board designs with reliable electrical performance up to 40 GHz.
Save space and boost signal integrity with ultra-compact SMPM to SMPM cable assemblies
Amphenol RF is pleased to introduce the SMPM to SMPM assembly on RG-178 cable into our extensive and diverse portfolio of cable assemblies.
Save time and avoid damage in SMPM maintenance with the new removal and installation tool
Amphenol RF is pleased to introduce the SMPM Bullet Tool into our growing portfolio of tools designed to make installation and removal processes streamlined.
Eliminate magnetic interference and increase performance with new non-magnetic SMPM bullet adapters
Amphenol RF is pleased to introduce new non-magnetic SMPM bullet adapters into our extensive adapter portfolio.
Pre-configured SMPM cable assemblies offer flexibility in compact, high-frequency applications
Danbury, CT – Amphenol RF is pleased to announce the expansion of our cable assembly portfolio with new cable assemblies engineered with straight SMPM plug connectors on compact 0.047-inch cable.
Combat high-vibration environments with SMPM cable assemblies
Amphenol RF is pleased to introduce high-performance SMPM cable assemblies designed on industry‐standard flexible cable types.
Attain unrivaled performance with new 2.92 mm cable assemblies
Amphenol RF is pleased to introduce additional pre-configured 2.92 mm cable assembly configurations which feature a 2.92 mm connector and the option of an SMP or SMPM connector attached on the opposing end.
New non-magnetic PCB mounted SMPM options now available
Amphenol RF is pleased to announce the expansion of our non-magnetic offerings with new SMPM PCB designs.
SMPM Plug to Plug Cable Assembly Datasheet
The Amphenol RF SMPM Plug to Plug Cable Assemblies datasheet highlights 50 ohm assemblies on conformable and flexible cables, suitable for frequencies from DC to 18 GHz. These micro-miniature, push-on connectors are ideal for high-vibration environments and applications such as antennas, test equipment, military, quantum computing, and radar.
SMPM Cable Assemblies
The Amphenol RF SMPM Fixed Length Cable Assemblies cut sheet details micro-miniature SMPM plug-to-plug cable assemblies designed for high-frequency applications up to 20 GHz. These assemblies, available in standard lengths from 3 to 48 inches (or 100 to 2000 millimeters), feature conformable semi-rigid cables in .085" and .047" diameters. Ideal for antennas, backplane, broadband, wireless, military, and instrumentation applications, these assemblies offer push-on mating styles and accommodate both radial and axial misalignment.
SMPM Connector Series
The Amphenol RF SMPM Connector cut sheet highlights micro-miniature connectors with a frequency range of DC to 65 GHz, suitable for high-frequency coaxial applications. These connectors feature push-on and snap-on mating styles, accommodating both radial and axial misalignment, and are ideal for high-vibration environments. Available in various configurations, including surface mount, through-hole, right-angle, and edge mount, SMPM connectors are commonly used in antennas, broadband, military, and instrumentation applications.
Board-to-Board Solutions
Amphenol RF's board-to-board solutions provide high-performance interconnect options designed for seamless integration in various applications. These solutions ensure reliable connectivity between PCBs, optimizing space and maintaining signal integrity across different frequencies and environments. The product line includes a variety of connector configurations to meet specific design requirements, supporting a wide range of industries from telecommunications to industrial automation.
Amphenol RF SMPM Product Series Solutions Guide
The Amphenol RF SMPM Product Series Solutions Guide provides an overview of the compact, high-frequency SMPM connector series. It details their lightweight design, high-density packaging, and superior electrical performance, making them ideal for aerospace, defense, and high-speed communication applications.
Amphenol RF New 2.92 mm Cable Assemblies Datasheet
Amphenol RF New 2.92 mm Cable Assemblies datasheet with features, benefits, applications, and ordering information.
Amphenol RF Board-to-Board Connectors: Reliable High-Frequency Solutions!
Amphenol RF offers a cutting-edge range of board-to-board RF connectors, designed for seamless high-frequency signal transmission. These connectors are essential for applications in 5G, IoT, automotive, aerospace, and industrial automation, ensuring reliable and high-performance connectivity in compact designs.
🔹 Key Benefits:
✔️ High-frequency performance
✔️ Secure and durable connections
✔️ Compact & versatile for modern PCB designs
Watch this short to see how Amphenol RF’s board-to-board connectors optimize signal integrity across industries!
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Amphenol RF Technical Demonstration Series: Board-to-Board and Automotive Solutions
Learn more about Amphenol RF's board-to-board and automotive solutions with Amphenol RF Asia product manager, Isabella Zhang.
Board-to-board solutions: https://www.amphenolrf.com/board-to-board-rf-connectors
Automotive Solutions: https://www.amphenolrf.com/automotive
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